NPPES file of Aug 9, 2026

Igor Irvin Bussel, MD

Glaucoma Specialist (Ophthalmology) Physician · Fullerton, CA

Igor Irvin Bussel, MD is a glaucoma specialist (ophthalmology) physician with a practice address in Fullerton, California, and NPI 1699193367, issued on Mar 31, 2014. Check the license (California A161695, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1699193367
Name
Igor Irvin Bussel
Credential
MD
Primary taxonomy
Glaucoma Specialist (Ophthalmology) Physician 207WX0009X
License number
A161695 CA
Self-reported in NPPES; status is on the state search
Practice location
270 Laguna RD Ste 100, Fullerton, CA 92835
Phone
(714) 525-2375
Enumerated
Mar 31, 2014
Record last updated
Nov 3, 2022
Fax
(714) 871-9280
Medicare enrollment
Enrolled (PECOS I20190912001908); accepts Medicare assignment
Medical or professional school
Chicago College Of Medicine And Surgery, 2014
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Igor Irvin Bussel in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A161695
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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13% fewer Medicare Part D claims than the average glaucoma specialist (ophthalmology) physician in 2024

2,671 Medicare Part D claims for 556 beneficiaries, against an average of 3,060 among the 430 providers of this specialty who prescribed in Part D. Brand-name drugs were 40% of claims.

  1. Igor Bussel2,671
  2. Specialty average3,060

Most prescribed

  1. Latanoprost590 claims
  2. Dorzolamide-Timolol291 claims
  3. Prednisolone Acetate229 claims
  4. Ofloxacin202 claims
  5. Brimonidine Tartrate136 claims
  6. Erythromycin121 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

No measured MIPS final score for 2023

CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $458.93

14 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 391 providers of this specialty with any payment received $5,284.60 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Igor Bussel$458.93
  2. Specialty average$5,284.60

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Brilliant Eye CenterFullerton, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Igor Irvin Bussel among 70 glaucoma specialist (ophthalmology) physician records in California

Igor Irvin Bussel, MD is one of 70 glaucoma specialist (ophthalmology) physician records with a practice address in California. 97% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 53% of them.

  • NPI issued2014 · 53% of these records are older, 43% newer
  • In a Medicare fileYes · 97% of these records are
  • In the CMS Doctors and Clinicians fileYes · 93% of these records are
  • Graduated2014 · median 2013 among the 65 with a school on file
  • Record last updated2022 · 30% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207WX0009X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Glaucoma Specialist (Ophthalmology) Physician providers in California

There are 70 glaucoma specialist (ophthalmology) physician records in California.

The 8 glaucoma specialist (ophthalmology) physician records with the nearest ZIP codes

  1. Anand Bhatt, MDSanta Ana, CA 927051831358977
  2. Andrew Smith, M.D.Irvine, CA 926971215460670
  3. Philina Yee, MDCamarillo, CA 930101730642596
  4. Austin Fox, M.D.Irvine, CA 926171851740591
  5. Ken Lin, M.D., PH.D.Irvine, CA 926171205153939
  6. Sameh Mosaed, MDIrvine, CA 926171275613432
  7. Eric Chan, M.D.Riverside, CA 925061427443316
  8. Cecilia Hernandez, MDHanford, CA 932301861019630

Common questions

What is Igor Irvin Bussel, MD's NPI number?

Igor Irvin Bussel, MD's National Provider Identifier (NPI) is 1699193367, issued on Mar 31, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Igor Irvin Bussel, MD located?

The NPPES record lists a practice address at 270 Laguna RD Ste 100, Fullerton, CA, 92835. Phone: (714) 525-2375. Providers update this record themselves, so call before visiting.

How can I verify Igor Irvin Bussel, MD's license?

NPPES lists California license number A161695, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Igor Irvin Bussel, MD prescribe under Medicare Part D?

In 2024, Igor Irvin Bussel, MD had 2,671 Medicare Part D claims for 556 beneficiaries; the average among glaucoma specialist (ophthalmology) physician prescribers was 3,060. Part D covers Medicare prescriptions only.

What is Igor Irvin Bussel, MD's MIPS final score?

CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.